1. Your Supply Chain manager wants you to construet an X bar \& R Chart for the following data set. As a first step, you need to get Upper-Control-limit (UCL) and Lower-Control-limit (LCL). What are the UCL and LCL for the X bar Chart and R Chart? UCLR=D4R=LCLR=D3R= UCLx=x+A2R=LCLx=xA2R= TAB LE 5, 1 FACTORS FOR CALCULATING THREE-SIGMA LIMITS FOR THE x-CHART AND R-CHART Source: 1950 ASTM Monual on Quality Control of Materials, copyright (9) American Society for Testing Materials Reprinted wich permission